Home / 280,766.04-387,458.15-153,441.69

Finding the Fourth Proportional to 280,766.04, 387,458.15 and 153,441.69

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Solution

The fourth proportional to 280,766.04, 387,458.15 and 153,441.69 is: 211,750.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,766.04 : 387,458.15 = 153,441.69 : x
  2. Step 2: Convert to fraction form
    280,766.04/387,458.15 = 153,441.69/x
  3. Step 3: Cross multiply
    280,766.04x = 387,458.15 × 153,441.69
  4. Step 4: Simplify right side
    280,766.04x = 59,452,232,573.07
  5. Step 5: Solve for x
    x = 59,452,232,573.07/280,766.04
  6. Step 6: Final answer
    x = 211,750.08

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.